Middle Eocene Ostracodes from Fayoum, Egypt

Bassiouni, Mohamed; Boukhary, Mohamed; Shamah, Kamal; Blondeau, A.

doi:10.3406/geolm.1984.1308

Cited by 23 publications

(12 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2a) is about 112 m. thick and contains the Midawara Formation below followed above by the Sath El-Hadid Formation. The former formation consists of glauconite bearing highly nummulitic sandstone and siltstone with minor marl interbeds of Lutetian age (Shamah et al, 1982;Bassiouni et al, 1984) while the latter comprises hard white limestone with chert of Bartonian age (Strougo, 1986). The Midawara Formation contains N. rushdisaidi nov. sp.…”

Section: Nile Valleymentioning

confidence: 98%

Precursors of the Nummulites gizehensis and N. partschi group from Egypt

Boukhary

Hussein

Kamal

2010

Journal of African Earth Sciences

View full text Add to dashboard Cite

Section: Nile Valleymentioning

confidence: 98%

Precursors of the Nummulites gizehensis and N. partschi group from Egypt

Boukhary

Hussein

Kamal

2010

Journal of African Earth Sciences

View full text Add to dashboard Cite

“…Gingerich, 1992) and shallow‐marine littoral to outer neritic (e.g. Bassiouni et al. , 1984; Blondeau et al.…”

Section: Discussionmentioning

confidence: 99%

Sedimentary environments and depositional characteristics of the Middle to Upper Eocene whale-bearing succession in the Fayum Depression, Egypt

Abdel‐Fattah¹,

Gingras²,

Caldwell³

et al. 2010

Sedimentology

View full text Add to dashboard Cite

The discovery of whale fossils from Eocene strata in the Fayum Depression has provoked interest in the life and lifestyle of early whales. Excellent outcrop exposure also affords the dataset to develop sedimentological and stratigraphic models within the Eocene strata. Previous work generally asserts that the thick, sand-rich deposits of the Fayum Depression represent shoreface and barrier island successions with fine-grained lagoonal and fluvial associations capping progradational successions. However, a complete absence of wave-generated sedimentary structures, a preponderance of thoroughly bioturbated strata and increasingly proximal sedimentary successions upwards are contrary to accepted models of the local sedimentological and stratigraphic development. This study considers data collected from two Middle to Upper Eocene successions exposed in outcrop in the Wadi El-Hitan and Qasr El-Sagha areas of the Fayum Depression to determine the depositional affinities of Fayum strata. Based on sedimentological and ichnological data, five facies associations (Facies Association 1 to Facies Association 5) are identified. The biological and sedimentological characteristics of the reported facies associations indicate that the whale-bearing sandstones (Facies Association 1) record distal positions in a large, open, quiescent marine bay that is abruptly succeeded by a bay-margin environment (Facies Association 2). Upwards, marginal-marine lagoonal and shallow-bay parasequences (Facies Association 3) are overlain by thick deltaic distributary channel deposits (Facies Association 4). The capping unit (Facies Association 5) represents a transgressive estuarine depositional environment. The general stratigraphic evolution resulted from a regional, tectonically controlled second-order cycle, associated with northward regression of the Tethys. Subordinate cycles (i.e. third-order and fourth-order cycles) are evidenced by several Glossifungites-ichnofacies demarcated discontinuities, which were emplaced at the base of flooding surfaces. The proposed depositional models recognize the importance of identifying and linking ichnological data with physical-sedimentological observations. As suchwith the exception of wave-generated ravinement surfaces -earlier assertions of wave-dominated sedimentation can be discarded. Moreover, this study provides important data for the recognition of (rarely reported) completely bioturbated sand-dominated offshore to nearshore sediments (Facies Association 1) and affords excellent characterization of bioturbated inclined heterolithic stratification of deltaic deposits. Another outcome of the study is the recognition that the whales of the Fayum Depression are restricted to the highstand systems tracts, and lived under conditions of low depositional energy, Sedimentology (2010) 57, 446-476 low to moderate sedimentation rates, and (not surprisingly) in fully marine waters characterized by a high biomass.

show abstract

“…Costa crassireticulata crassireticuiata (see Bassiouni et al, 1984) is included hereby in the genus Reymenticosta Bassiouni & Luger, 1990 because of its more oval, Veenia like outline. This species is also found in the Middle Eocene of Jordan (Bassiouni, 1969b) and Egypt (Cronin & Khalifa, 1979;Boukhary et al, 1982b).…”

Section: Remarksmentioning

confidence: 99%

“…22. (Bassiouni et al, 1984) and Late Eocene sediments (Bassiouni, 1971a (Bassiouni & Luger, 1990) and Tunisia (Donze et al, 1982). The figured specimens from Tunisia are less spinous than our material.…”

Section: Explanation Of Platementioning

confidence: 99%

Ostracods and foraminifera from the Early - Middle Eocene of Qeren Sartaba, Jordan Valley

Honigstein

Rosenfeld

Benjamini

1991

J. Micropalaeontol.

View full text Add to dashboard Cite

-23 species of ostracods and 20 species and species groups of planktonic foraminifera from the 80m thick Qeren Sartabasection, central Jordan Valley, are described and illustrated. The material is determined by planktonic foraminifera1 biostratigraphy to belong to the latest Early Eocene (upper part of Zone P9) and the early Middle Eocene (Zone P10). The palaeoecology is representative of a pelagic marine shelf, with periodic events of shallowing and hardground formation.

show abstract

Middle Eocene Ostracodes from Fayoum, Egypt

Cited by 23 publications

References 0 publications

Precursors of the Nummulites gizehensis and N. partschi group from Egypt

Precursors of the Nummulites gizehensis and N. partschi group from Egypt

Sedimentary environments and depositional characteristics of the Middle to Upper Eocene whale-bearing succession in the Fayum Depression, Egypt

Ostracods and foraminifera from the Early - Middle Eocene of Qeren Sartaba, Jordan Valley

Contact Info

Product

Resources

About